Based On The Photonic Crystal Waveguide Wavelength Of Surface Wave Multiplexer

Scientific progress also contributed to the upgrading of electronic equipment,precision electronic devices have become increasingly demanding a higher demandfor the performance of the generation of electronic equipment, the photonic crystal isnearly two decades, a new type ofsynthetic materials, synthetic materials as the coreof new technologies for research in the field have a greater impact because of theexcellent performance of many optical devices do not have a clear comparativeadvantage in the ability to transmit information.thus the study of photonic crystals hasattracted wide attention in the field of optical physics. In this study, selected based onsurface wave photonic crystal waveguide wavelength demultiplexer as the object ofstudy, and formed the following conclusions from this study.First, the paper discusses the photonic crystal based on the FDTD algorithm,FDTD is a numerical technique for solving electromagnetic problems has been widelyapplied in the field of photonic crystal, the paper first discusses the Maxwellequations and the FDTD iterative equations, analyzestability and boundary conditions,focus on the FDTD numerical solution procedure used in this study with a largerspace due to the versatility of the FDTD program is very good, of course, differentproblems also need to consider different aspects, while in the computingprocessrelated adjustment.Secondly, the paper examines the surface waves applied to the waveguidewavelength demultiplexer. Papers using the FDTD method of two-dimensionalphotonic crystal waveguide corrugated surface control the laws of the incident lightapplied to this on the basis of surface wave waveguide type wavelength demultiplexeranalysis, design out of a specific wavelengths of light to focus on photonic crystalaxis of asymmetry on the corrugated surface, at the same time in Boyuan the choice tocarry out a flexible trade-offs, to design a new type of wavelength demultiplexerbased on this principle, which is the surface waves applied to the waveguide-type wavelength demultiplexing Appliances important way, it was a asymmetric corrugatedsurface as the exit face of the photonic crystal waveguide. Focused beam of influenceand power media column by the focus of analysis of the out of the radio-side face offocused beam of regulation, including the mechanism of photonic crystal waveguideregulation of the outgoing beam the ripple cycle, the waveguide width of the focusingof the beam, etc., the last investigate the surface waves in the wave decompositionmultiplexer in the application.Finally, the paper inclined plane waveguide on the regulation of the focused laserbeam. First inclined plane waveguide structure model of the waveguide to the outputbeam of the focused beam of regulatory rules and the inclined plane waveguideregulation mechanism, and the regulation of the angle of inclination to focus law anddeviate from the axis of the beam of a focused laser beam, this study design a newfringe of the wavy surface of the inclined plane waveguide structure is a strongcomplement to be applied for the SAW waveguide-type wavelength demultiplexer,focusing on the law of the bevel angle control beam, while the horizontal conclusionsof the study were compared and analyzed. Explore the outgoing side inclined planewaveguide deflection of the beam can be formed both cases, follow-up study tofurther complement and description.Select papers based on surface wave photonic crystal waveguide wavelengthdemultiplexer as the object of study, to reveal the laws of the exit surface of photoniccrystal waveguides control beam to investigate the role of guidance in practicalapplication, design light traffic device,follow-up study of photonic crystals provide areference.